pinctrl: sunxi: do not print error message for EPROBE_DEFER

Avoid printing an error message if getting a regulator fails with
EPROBE_DEFER.  This can happen if, for example, a regulator supplying
one of the main banks is controlled by a PL pin.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20220217131737.10931-1-mans@mansr.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/sunxi/pinctrl-sunxi.c

@@ -777,11 +777,10 @@ static int sunxi_pmx_request(struct pinctrl_dev *pctldev, unsigned offset)
 
 	snprintf(supply, sizeof(supply), "vcc-p%c", 'a' + bank);
 	reg = regulator_get(pctl->dev, supply);
-	if (IS_ERR(reg)) {
-		dev_err(pctl->dev, "Couldn't get bank P%c regulator\n",
-			'A' + bank);
-		return PTR_ERR(reg);
-	}
+	if (IS_ERR(reg))
+		return dev_err_probe(pctl->dev, PTR_ERR(reg),
+				     "Couldn't get bank P%c regulator\n",
+				     'A' + bank);
 
 	ret = regulator_enable(reg);
 	if (ret) {